How to say "Do" in Japanese

When translating "do" into Japanese, you must choose carefully between 頑張る and 〜てしまう. In Japanese, 頑張る (がんばる (ganbaru)) is typically associated with "to do one's best, to try hard, to persevere" (Syllabus Level: N4) and represents A versatile word used to encourage oneself or others to try hard, persist, or endure. Common phrases include 頑張って. On the other hand, 〜てしまう (〜てしまう (te shimau)) maps to "to do completely; to do regrettably/unintentionally" (Syllabus Level: N3) and represents Expresses either the completion of an action, often implying 'finished doing,' or an action done unintentionally or regrettably. In casual speech, it's often shortened to 〜ちゃう/〜じゃう. A literal translation of "do" can often sound unnatural to native Japanese speakers if mixed up!